Four rounded corners 26.5 mm plus 1.0, minus 0.0 (1.0433 in.) radius
A color free item of transparent or translucent material, usually optical glass, having specific light dispersive and refractive properties. This item must have two plane-parallel surfaces and is designed for use in an optical instrument to provide a barrier to foreign matter and/or permit light transmission in or to the optical system.
Classification: Military equipments not identified by kind
NSN 5960-00-736-0213
NSN 6685-00-114-1826
NSN 6620-01-259-5944
NSN 6240-01-071-2127
NSN 6135-00-951-3426
NSN 5945-01-171-9065
NSN 6150-00-773-5147
NSN 6105-01-510-4359
NSN 6240-01-415-5581
NSN 6645-01-261-6903
NSN 5930-01-634-0659
NSN 4140-00-547-8918